Abstract. The basic structure of the bicycle was introduced. The assembly process of the bicycle was given. The automatic assembly technology was used to realize the assembly of the key parts of the bicycle. Through the intelligent production management system, MES, the entire assembly process of bicycle information was achieved, which was intelligent and visualization. The accuracy of bicycle assembly was improved. The assembly time was shorted. Using assembly-type AGVs the flexible assembly of the bike might be achieved, which could lay the foundation for the future customization of bikes.